My beta-quality, more-or-less unsupported Subscribe to Feed extension adds a handy button to the toolbar that, when a page offers RSS or Atom feeds, can be clicked to easily open the feed:// link, which should automatically open your favorite news reader… I hope this extension fills a void for those of you missing the beloved RSS button.

It is not perfect… it currently defaults to 9to5mac’s comments feed. It is better than nothing, though, especially if you are missing the feature from Safari 5.